AirHint found the following cheapest return flights from Montreal (YUL) to San Jose (SJO) in January 2026 (see full year).

Return flights

31 Jan - 15 Feb	Avianca
20 Jan - 29 Jan	Avianca
05 Jan - 18 Jan	Air Transat
27 Jan - 04 Feb	Air Transat
06 Jan - 21 Jan	Air Transat
26 Jan - 04 Feb	Air Transat
25 Jan - 05 Feb	United
20 Jan - 27 Jan	United
27 Jan - 03 Feb	United
27 Jan - 06 Feb	Avianca
09 Jan - 21 Jan	Air Transat
28 Jan - 04 Feb	Copa
28 Jan - 07 Feb	United
25 Jan - 02 Feb	United
18 Jan - 26 Jan	United
14 Jan - 24 Jan	United
26 Jan - 02 Feb	United
18 Jan - 28 Jan	United
12 Jan - 21 Jan	United
11 Jan - 27 Jan	Air Transat

Also check the deals for one-way flights from Montreal to San Jose in January.

The deals are updated regularly. The prices may go up as tickets are purchased by other travellers. Only the cheapest flights are offered. Select a price to book and secure these cheap prices.

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Cheapest return flights from Montreal to San Jose in January from $335

Return flights